“............ What vector is perpendicular to the column space, and the vector in the zero space transposed by A ............"

Chinese class is boring, but math class is enjoyable.

Although Wang Nan also has mathematical knowledge in his memory, but he is still a college student, he has obviously never heard of such things as projection matrices and least squares in linear algebra.

"Ringing ringing!"

The difference is from the dull and powerful bell during class, but the bell is cheerful and hurried at the end of class.

"Please let me go, I'm going out. ”

Suddenly, when I heard this figure, the first thought that came to me was: So lazy?

He sat to the right of the two seats in the second row, and the aisle was on the right, and although she was sitting on the left, the people in the third row were gone, and she could have walked that way.

stunned and the lack of prediction for nearly two seconds of stuttering, the long reaction time is unbearable.

Scientific studies have shown that if the lag time exceeds 4 seconds, people are a little anxious, and after more than 12 seconds, they have the idea of wanting to give up.

"Please let me. ”

"Isn't it okay to go over there?"

Wutian tilted his head and said honestly.

In an instant, Wutian felt a kind of cold air coming from his face, and there was a low, dead pure music faintly in his ears.

"Could it be the existence of the legendary one who has never beaten me in my BGM?"

Just when the atmosphere became a little delicate, Jiang Xiaotian walked out of the classroom, and Wutian followed.

Cheng Hao, who was waiting at the door and didn't forget to cultivate a feeling with the hot cuties, saw Jiang Xiaotian, hurriedly said goodbye to the cuties and ran over, and asked:

"Boss, what do you want to eat at noon?"

"Whatever!"

"This ......" made Cheng Hao difficult, Jiang Xiaotian said that a name is nothing no matter how much money there is, and the word "casual" is troublesome.

"Then let's go to the cafeteria to see if there is anything the boss wants to eat, and you can see a lot of beautiful schoolgirls!"

In fact, this was also one of Jiang Xiaotian's interests before.

The cafeteria area of Imperial High School has a clear style and distinct cuisine.

Considering the existence of special students, the school has also set up a free boutique free area for students to eat, with fish, meat, eggs and milk, but unfortunately no one cares about it because of the clear partition.

Even if there are a few new transfer students, they don't dare to go back when they look at others and look at them strangely.

In addition to the free area, the school also has a high-fee area, after all, it is a private school, in addition to educating people, making money is also the top priority.

The characteristics of the high-fee area are unusually distinct, just one word "expensive!"

As long as you think of the dish, you can make it with the chef, of course, the price is not expensive.

Although the price of the high-fee area is extremely expensive, it is the most lively of all the districts, and in the high-fee area, in addition to eating, you can also drink coffee and read books.

Therefore, there are many female students with unusually high appearance who will come to the high-cost area to order a cup of coffee and take a book to study after eating.

When Cheng Hao led Jiang Xiaotian to a corner of the high-fee area, there were flowers everywhere in his eyes, and he was everywhere in ordinary schools.

After the combination of handsome men and beautiful women, the daughters born will naturally not be bad, most rich people will marry beautiful women, and the probability of giving birth to a beautiful woman is very high, and it is a matter of course that the beauties of the imperial high school as a sweeper for rich students gather.

"There are no seats here, let's change places!" Jiang Xiaotian looked around and said.

Cheng Hao, who was looking for a candidate, was stunned when he heard the words, thinking that it was normal for Jiang Xiaotian to have amnesia and not remember, so he opened his mouth to explain: "How can there be no seats, don't you see that there are two places left next to many beautiful and lovely school girls?"

"Huh, isn't that a normal distance between different strangers?"

"Boss, you're wrong, leaving a distance and not communicating is telling us that they don't know, welcome to talk!"

"Is that okay?"

"This is the tradition of the high-fee area! You look at the books they hold, the fashion magazines show that she likes fashion, the food magazines show that she likes food, the books they hold already tell you their preferences, let you sit in the right seat, how about it? Sweet! Boss, choose one!"

Hearing the content of Cheng Hao's chat, Wutian was too lazy to take care of the children's pickle girl game, walked to another empty corner and sat down.

"Classmate, how can you order food?"

As he spoke, the waiter handed over a tablet.

"Dear master, what do you like to eat? Western, Eastern, delicatessen, raw ......"

"Eating" is a familiar and unfamiliar word, since he left the ranch world, he has not eaten, and he has been able to directly absorb the aura of heaven and earth to replenish his own energy after recovering to the cultivation of the gods, although the aura of heaven and earth in this world is pitiful, but he can have the aura of a divine kingdom.

The density of the Divine Kingdom's aura is equivalent to that of the Ranch World, which is also equivalent to the True Immortal Continent.

Thinking of eating, he couldn't help but recall the feeling of starving to death in the ranch world, as well as the cute, charming, and tone of the girl who was not even afraid of death for him.

"Is she okay now?"

"What?"

"Give me a piece of cake, it's going to be something unpalatable. ”

"Huh?"

"Questions?"

"No, no. ”

The waiter has already made up for the fact that the unpalatable taste is the meaning of bitterness.

The wait is always long, no matter how long it is.

I glanced at the bookshelf at hand and became interested.

Picked up a copy of "Mecha Basics" and flipped through it.

After a while, an elegant girl in a blue dress sat down beside Wutian with a drink.

Men and women are equal, boys have the right to choose friends, and girls naturally have it.

"Waiter, give me a plate of fried rice with salad and eggs. ”

Seeing that Wutian was still looking at the book by himself, he didn't mean to shift his gaze to himself at all, and the elegant girl didn't have such good patience, so she patted him on the shoulder, and said at the same time: "Classmate, it's very impolite for you to ignore a beautiful, cute, moving, and sexy elegant girl like this." ”

"If you don't give it to me, why should you bother with you. ”

He never imagined that he would say such a thing before, but since he lived younger and younger, he slowly felt that it was really good to be slapped in the face and choked.

Isn't there an old naughty boy who says that the older you get, the more unserious you are.

"Humph! ”

The elegant girl who scolded was about to leave, and stopped when she found that Wutian was still looking at "Mecha Basics" with relish, and a thought came to mind: "His body is so attractive that he has been trained, he must want to be a real mecha knight, he must have wanted to be a real mecha knight without looking at me from beginning to end, but he said such rude words, he must have wanted to be angry, I don't want me to disturb him reading, he himself must be a good man with lofty aspirations." ”

(End of chapter)